Submission #876159

#	Time	Username	Problem	Language	Result	Execution time	Memory
876159		CBG6682	Knapsack (NOI18_knapsack)	C++14	73 / 100	1092 ms	37664 KiB

knapsack

#include <bits/stdc++.h>
using namespace std;

const int MAXX = 1e5 + 5;
int s,n,dp[2001][MAXX];


struct Product{
    int v,w,k;

};
Product product[MAXX];

bool cmp(Product a, Product b){
    return a.w < b.w;
}

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(NULL);
    cin >> s >> n;
    for (int i = 0; i < n; i++) cin >> product[i].v >> product[i].w >> product[i].k;
    sort(product,product + n,cmp);
    for (int i = 1; i <= s; i++){
        for (int j = 0; j < n; j++){
            if (i >= product[j].w){
                int num = 1;
                while (num*product[j].w <= i && num <= product[j].k){
                    dp[i][j] = max(max(dp[i - num*product[j].w][j - 1] + product[j].v*num,dp[i][j]),max(dp[i - 1][j],dp[i][j - 1]));
                    num++;
                }
            }
        }
    }
    cout << dp[s][n - 1];
    return 0;
}

• Subtask 1: 12 / 12
• Subtask 2: 17 / 17
• Subtask 3: 20 / 20
• Subtask 4: 24 / 24
• Subtask 5: 0 / 27